Comparison

ShiftCal® vs Flexi Calendar

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

ShiftCal®

This app helps emergency service personnel manage complex 24-hour shift schedules. It supports multiple platoons and allows for easy customization of various shift patterns, including Kelly days and RDOs. Users can create and switch between different schedules for personal or professional use.

Highlights
  • Platoon-based 24-hour shift scheduling
  • Customizable for 2-6 platoons
  • Supports .ini shift schedule files
  • Create and switch multiple schedules
  • Display Kelly days, RDOs, debit days
  • Paste from clipboard for quick schedule creation
Features
Read full description

ShiftCal® is a platoon-based calendar for emergency service personnel working 24-hour shifts. It is easily customized for any regular schedule of two to six platoons and uses the same shift schedule (.ini) files as the desktop version. Create multiple shift schedules and switch between them at will - keep track of schedules for family members or neighboring agencies. Display Kelly days, RDO's, or debit days in an alternate color. Quickly create new shift schedules using the "Paste from Clipboard" option - see the "Help" tab. ShiftCal is not an appointment calendar - you already have an excellent one on your device. ShiftCal is a registered trademark.

About

Flexi Calendar

Manage complex and rotating work schedules with ease. This app is designed for individuals with non-traditional weekly routines, allowing for custom schedule creation and sharing. Sync with your device's calendar and find common availability with friends.

Highlights
  • Customizable rotating schedules
  • Support for non-traditional workweeks
  • Schedule comparison with friends
  • Export to Apple Calendar
  • Find mutual availability
  • Ideal for shift workers
Features
Read full description

Your schedule doesn’t fit a standard week. Flexi turns rotating shifts into a clear, color-coded calendar and helps people you know find time together. SEE EVERY SHIFT • Build repeating work patterns, rotas, and schedule presets • Scan upcoming days at a glance • Track hours and spot trends PLAN TOGETHER • Compare group availability without sharing your entire calendar • Create group events with locations, notes, RSVP deadlines, and Going/Maybe/Can’t Go responses • Keep the next group event visible in the conversation MESSAGE PRIVATELY • Start direct chats or named group chats • Use moderators, permissions, nicknames, blocking, and reporting • New messages and event details use end-to-end encryption on supported Flexi versions STAY IN SYNC • Add selected events to Apple Calendar • Import or export the calendars you choose • Get optional reminders and notifications Contacts and calendar access are optional and requested only when you use features that need them. Account deletion is available in Settings.

Screenshots

ShiftCal®2 screens
Flexi Calendar4 screens

Verdict

The call

The clearest difference is price: Flexi Calendar at Free against ShiftCal®'s $1.99. Flexi Calendar also leads on rating (5.0 vs 1.0) and update cadence (daily vs every 4 months). ShiftCal®'s advantage is iOS requirement (11.0 vs 16.4). On ratings volume, ads, in-app purchases and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Flexi Calendar is free to download; ShiftCal® costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Flexi Calendar holds the better App Store score, 5.0 against 1.0. Both are backed by a comparable volume of ratings — 2 and 5 respectively.

UpkeepUpdate frequency

ShiftCal® ships an update every 4 months, Flexi Calendar daily. The most recent releases landed on November 2, 2026 and November 4, 2026 respectively.

Scorecard5 real differences · 5 level
ShiftCal® versus Flexi Calendar: the parameters behind the verdict, then further details
ParameterShiftCal®Flexi Calendar
Price$1.99Free — better
Rating1.0 (2 ratings)5.0 (5 ratings) — better
Positive reviews0.0% of reviews—
Number of ratings25 — better
Update frequencyEvery 4 monthsDaily — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidFree — better
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS11.0 — better16.4
Further details — not scored
Size20 MB21 MB
Age rating4+4+
DeveloperThomas Wesley EricksonRichard Lavey

Customer experience

ShiftCal®

All ratings2 ratings
Positive0.0%
Neutral0.0%
Negative100.0%
Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

Flexi Calendar

All ratings5 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

ShiftCal®

No in-app purchases

None

Flexi Calendar

No in-app purchases

Questions

Is ShiftCal® free?
ShiftCal® costs $1.99, with no in-app purchases.
Is Flexi Calendar free?
Flexi Calendar is free to download, with no in-app purchases.
Which has better reviews, ShiftCal® or Flexi Calendar?
Flexi Calendar is rated higher. ShiftCal® averages 1.0 out of 5 from 2 ratings, while Flexi Calendar averages 5.0 from 5 ratings.
Do ShiftCal® or Flexi Calendar have ads?
Neither ShiftCal® nor Flexi Calendar shows ads.
Which is updated more often, ShiftCal® or Flexi Calendar?
ShiftCal® ships an update every 4 months, and Flexi Calendar daily. Most recently, ShiftCal® was updated on November 2, 2026 and Flexi Calendar on November 4, 2026.

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